Miter-box.



No. 666,465. Patented Ian. 22, IBM. A. BUBKMAN.

M l T E R B 0 X (Application filed Apr. 24, 1900.)

(N0 Modei.)

Unrrnn Smarts AARON BURKMAN, OF ROCKFORD, ILLINOIS.

MlTER-BOX.

. SCKFICATION forming part Of Letters Patent NO. 666,465, dated January22, 1901. Application filed April 24,1900- Serial No. 14,326. (Nomodels" To all whom it may concern:

Be it known that I, AARON BURKMAN, a citizen of the United States,residingat Rockford, in the county of Winnebago and State of Illinois,have invented certain new and useful Improvements in Miter-Boxes. ofwhich the following is a specification.

The object of this invention is to construct a miter-box in which thesaw is guided between its supports and in which a lead roller is locatedin the path of the saw, upon which it strikes.

In the accompanying drawings, Figure 1 is an isometrical representationof my improved miter-box. Fig. 2 is a lengthwise section of thewood-cutting strip and its support. Fig. 3 is a transverse view of thecutting-strip and adj Listing-screw. Fig. 4 is an isometricalrepresentation of the strip 23 and its connections. Fig. 5 is anisometrical representation of the connection between the cutting stripand bar 9.

The main frame or base of the miter-box consists of the feet 1,supporting the bars 2 and curved front bar 3. This curved front bar hasa projection 4 at its base and provided with notches 5. A vertical back6 rises from the base and has a central vertical opening 7 andhorizontal openings 8 at the base of the vertical opening. A horizontalbar 9 has a pivotal connection with the base at a point below thevertical opening. The pivotal connection consists of a bolt 10, its headlocated in a recess in the hub portion 11 of the base. From each end ofthe bar 9 rise cylindrical posts 12, and these posts support one half ofthe saw-guide, consisting of the vertical tubular guides 13, movable onthe posts, the guides connected by a horizontal guide 14, having anoutward bend 15 near the back 6. A thumb-screw 16 is supported by one ofthe tubular guides and serves to hold the sawgnide at any point in itsvertical adjustment. To the upper end of the tubular guides is securedthe other half of the saw-guide, consisting of the horizontal portion17, having an offset 18, and the vertical sections 19, connected attheir upper ends to the upper ends of the tubular guides, leaving aspace between them sufficient to accommodate a saw.

Upon the upper face of the bar 9 is located a plunger 20, guided insupports 21, and a spring 22 surrounds the plunger, holding it towardthe projection 4. The end of this plunger is turned at right angles tothe main portion, forming a finger-hold for moving the plunger. Thisplunger is intended to enter the notches 5 in the projection 4.

The upper face of the bar 9 has a transverse groove, within which islocated a fiat strip 23, held from lengthwise movement by the stud 24.

Ears 25 extend from the sides of the bar 9 and are located under thestrip 23. These ears support set-screws 26, and by means of which thebar 9 can be adjusted to stand the supports 12 vertically or at an angleto a vertical line. The strip 23 bears against the under face of thecurved bar 4 and, owing to its length, prevents the bar from twisting.

Upon the bars of the frame is located a grooved support 27 for thewood-cutting strip 28. This support extends across the center of thepivotal connection between the bar 9 and main frame. A roller 29, oflead, is located within the grooved support, its upper face being on alevel with the upper surface of the wood-cutting strip. From the underface of the grooved support depend two projections 30 and 31. Theprojection 30 has a notch which is placed over a projection 32, risingfrom the upper face of the bar 9, and prevents lateral movement of thatend of the grooved support independent of the bar 9. The projection 31is connected to the bar 9 by a bolt 33, having a thumb-nut which permitsof the rocking movement of the bar 9 and the grooved support restingupon the bars of the main frame.

The material to be cut is placed upon the table 34, under the bars 15and 18 of the sawguide. The saw-guide is thenadjusted by means of theplunger, so as to cut a miter or at right angles to the material, andwhen the cut is finished the saw will come in contact with the leadroller, thereby saving the cutting-strip.

The horizontal bars 14 and 17 form a guide for the saw between thevertical guideways 13 and 19 and in which an ordinary saw can be used.

By means of the thumb-nut connected to the bolt 33 the cutting-strip andsaw-guide can be connected to the main frame at any point along thecurved bar 4, so that any angle can be out within the limits of thecurved bar.

The horizontal bars 14 and 17 of the sawguide are on a higher plane thanthe curved portions 15 and 18 in order that the teeth of the saw will bebelow the horizontal bars.

By means of the laterally extending curved portions 15 and 18 ofthe'saw-guide the projections 35 are located within the space formed bythe curved portions, against which the material to be cut rests, and thecurved portions rest upon the material.

I claim as my invention 1. Ina miter-box, the combination ofabase, a barpivoted to the base, two posts rising from the bar, one each side of itspivotal connection, and a saw-guide supported by the posts andformingaconnection between them, the guide having a lengthwise slot andlateral curved portions, the lower edge of the saw-guide being on ahigher plane than the lower edges of the curved portions.

and a lead roller located in line with the cut-- ting-strip its upperface being substantially level with the upper face of the cutting-strip.4. In a miter-box, the combination of a base, a bar pivoted to the base,a saw-guide supported by the bar, a cutting-strip support having anadjustable connection with the bar AARON BURKMAN. Vitnesses:

A. O. BEHEL, E. BEI-IEL.

